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PART I Page 3 Permit No. CO-0000321 A. 'fliRhlS AND CONDITIONS L Effluent Limitations PART [ Bc,inning no later than the effective date of this permu and lasting through July 31, ?W?, the permutee a authonzed to discharge from outlalls 002, 003. OOa. 005. 006. 008. 009. 010, OI I, 012, 013, Ola, 015, 016 and Of7. In accordance with the Water Quality Control Commission Regulanons Fur Effluent Limitations (5 CCR 1002-62), and the Colorado Discharge Permit System Regulations (~ CCR. 100261), the permitted discharge shall not contain effluent parameter concentrations which exceed the following limitations specified below or exceed the specited flow limitation. a. Outfalls 002 and 003 r1 U Effluent Parameter Discharge Limitations 30-Day Avg Daily flax Flow, ~VIGD Repon Repon Total Suspended Solids, mg/P 35 70 Total Iron, mg/Q 3.5 7.0 Settleable Solids, mP/P Repon Report Oil and Grease, mglP Report IO pH, s.u. (minimum-maximum) Report 6.5-9.0 Whole Effluent Toxicity, Acute N/A LCso> 100 a ALTERNATE LLWTATIONS Any discharge or increase in the volume of a discharge caused by precipitation within any 23-hour period less than or equal to the 10-vear. 24-hour erecipitation event (or snowmelt of equivalent volume) may comply with the following limitations subject to burden of proof requirements described N Pan LA.2. Effluent Parameter Discharge Limitations 30-Dav Avo Daily iV1ax Flow, ~V1GD Report Report Total Suspended Solids, mg/P Report Repon Total Iron, mg/P Report Report Settleable Solids, mP/P Report 0.5 Oil and Grease, mg/P Report 10 pH, s.u. (minimum-maximum) Report 6.5-9.0 Whole Effluent Toziciry, Acute N/A LCSO> I00% • Any discharge or increase in volume of a discharge caused by precipitation within any 24-hour period oreater than the 10-vear. 24-hour event (or series of storms or snowmelt of equivalent volume) may comply with the following limitations subject to burden of proof requirements described in Part I.A.2. Effluent Parameter Flow, MGD Total Suspended Solids, mg/P Total Iron, mg/P Settleable Solids, mP/P Oil and Grease, mg/P pH, s u. (minimum-maximum) Whole Effluent Toxicity. Acute See Part LC. I'or Definitions. Amendmem No. I Issued 30-Dav Avp Discharge Limitations Report Report Repon Repon Report Report NIA ~~'~ ~a 1.Gt~ Daily flax Report Repon Report Report 10 6.~-9 0 [~ LCsu> 100% (~ Effective C ~~ ~% ~ 1~Cn